Weather and Climate Chapter Notes | Be an Explorer 5: Book Solutions, Notes & Worksheets - Class 5 PDF Download

Introduction

• Weather defined as atmospheric conditions over a short period and at a specific place.
• Influencing factors: air temperature, air pressure, wind, humidity, and rainfall.
• Climate defined as average weather conditions over a large area and for an extended period.

Weather vs. Climate

• Weather changes rapidly, while climate remains consistent for 30-40 years.
• Weather affected by wind, sun's rays, temperature, humidity, and rainfall.

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Factors Affecting Climate

• Distance from the Equator (Latitude):
  • Equator proximity results in hotter climates.
  • Poles experience the coldest temperatures.
  • Altitude influences temperature; higher altitudes are colder.
• Distance from the Sea:
  • Coastal areas have moderate climates.
  • Inland areas may experience extreme climates.
• Direction of the Wind:
  • Winds from hot areas increase temperature.
  • Winds from cold regions lower temperature.
  • Winds can bring moisture, causing rain.
• Humidity:
  • Amount of moisture in the atmosphere.
  • Coastal areas often have high humidity.
• Ocean Currents:
  • Flow of water below the ocean's surface.
  • Warm or cold currents influence climate.

Types of Climate

• Monsoon Climate:
  • Wet summers, dry winters.
  • Example: India.
• Equatorial Climate:
  • Hot and humid year-round.
  • Example: Democratic Republic of Congo.
• Continental Climate:
  • Extreme hot summers, very cold winters.
  • Example: Delhi.
• Maritime Climate:
  • Moderate temperatures, near the sea.
  • Example: Mumbai.
• Desert Climate:
  • High daytime temperatures, low nighttime temperatures.
  • Example: Hot desert regions.
• Tundra Climate:
  • Extremely cold, near the Poles.
  • Example: Polar regions.
• Mediterranean Climate:
  • Wet and cool winters, hot and dry summers.
  • Example: Near the Mediterranean Sea.

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Climatic Zones of the Earth

• Torrid Zone:
  • Between Tropic of Cancer and Tropic of Capricorn.
  • Hot and humid climate.
• Temperate Zone:
  • Between Arctic Circle and Tropic of Cancer (Northern Hemisphere) or Antarctic Circle and Tropic of Capricorn (Southern Hemisphere).
  • Moderate climate, neither too hot nor too cold.
• Frigid Zone:
  • Near the Poles.
  • Cool throughout the year.

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Conclusion

• Understanding weather and climate helps us comprehend the Earth's diverse conditions.
• Different regions experience varying climates due to geographical and atmospheric factors.